1. V. G. Zaitsev and B. B. Timofeev, ?Speech discrimination,? Avtomatika, no. 2, Kiev, 1965.
2. T. K. Vintsyuk, ?Comparative characteristics of analyzers in speech discrimination systems,? Proceedings of the Second Symposium on Cybernetics [in Russian], Tbilisi, 1965.
3. V. A. Kovalevskii, ?The correlation method of discrimination,? collection: Reading Automata [in Russian], izd-vo Naukova dumka, Kiev, 1965.
4. M. I. Shlezinger, ?The correlation method of recognizing pattern sequences,? collection: Reading Automata [in Russian], izd-vo Naukova dumka, Kiev, 1965.
5. C. Berge, Theory of Graphs and its Applications [Russian translation], IL, Moscow, 1962.